Why does water move over the gills in a different direction to blood in the gill filaments? Welcome to CramNow, a collection of thousands of FREE, self marking, A Level multiple choice questions. AS Cells, Exchange and Transport Question Paper Cells, Exchange and Transport Mark Scheme. What is the purpose of the soda lime? General Biology MCQ . If an individual Streptococcus pneumoniae has a diameter of 1 �m, what is its surface area to volume ratio? The biology questions are organised inline with the AQA A Level Biology Specification, the Chemistry questions use OCR and the Physics questions use Edexcel. Start Now . This is because single-celled creatures have a very high surface-area-to-volume ratio, so have lots of available surface to exchange substances. Available for OCR A and B specifications. Botany MCQ . General Biology Set 2 MCQ . Biology revision resource made by teachers. Why does diffusion not work in multicellular organisms? Question Paper. Molecules, Biodiversity, Food and Health Question Paper. Specimen Papers < > 2017. If you miss a lesson or your teacher says something you don't understand I can help! These instructions cover the learner activity section which can be found on page 11. Sum of the vital capacity and residual volume, How expiratory reserve volume is represented on a spirometer graph, Line between troughs of tidal volume and start of the residual volume, How inspiratory reserve volume is represented on a spirometer graph, Line between peak of tidal volume and top of total lung capacity, How inspiratory capacity is represented on a spirometer graph, Line between trough of tidal volume and top of total lung capacity, How vital capacity is represented on a spirometer graph, Line between top of residual volume and top of total lung capacity, How residual volume is represented on a spirometer graph, Line beneath the lowest trough of tidal volume, Total volume of air inhaled in one minute, Ventilation rate = Tidal volume x Breathing rate, Relationship between tidal volume, breathing rate and oxygen uptake, As oxygen demand increases, tidal volume increases, breathing rate increases, oxygen uptake increases. Start quiz. Start studying OCR AS Level Biology: Exchange Surfaces. com. Just as when following the AQA A Level Biology qualification, your A Level students studying OCR Biology A will need to demonstrate to you, their teacher(s), that they are consistently and routinely competent in each of the skills and techniques defined for A Level Biologists. Cambridge International AS and A Level Biology builds on the skills acquired at Cambridge IGCSE (or equivalent) level. If the oxygen concentration is lower than this trout numbers decline. b r o n c h u s B l a r y n x �! OCR A Level Biology past paper exam questions organised by topic with model answers. Alarge surface areaBthin epitheliumCmicrovilliDmaintained concentration gradientYour answer 2 Streptococcus pneumoniae is a spherical-shaped bacterial pathogen that is best known for causing the respiratory illness pneumonia in humans. A l a r y n x �! Exchange Across Cell Membranes AS Biology Answers AQA OCR Edexcel Author: Maths Made Easy Subject: A Level Biology Keywords: biology, questions, worksheets, revision, aqa, edexcel, ocr, a level, Cell membranes, Created Date: 9/28/2017 11:38:33 AM What do the elastin fibres do in the alveoli? If you are not sure of the correct answer, use what you do know to narrow down the possibilities. Some questions might require synoptic thinking, using knowledge and ideas from various topics across the full A Level content. Carbohydrate Questions Lipids Questions Enzyme Questions DNA Questions Cells Questions Transport in cells Questions Mitosis Questions Immunology Questions DNA, Genes & Chromosomes Questions Genetic diversity Questions Taxonomy Questions Biodiversity Questions … d) early metaphase. OCR A-Level Biology A (H420 & H020) and Biology B Advancing Biology (H422 & H020) past (exam papers and marking schemes, the past papers are free to … b) Early prophase . Unit of work, including PowerPoint lesson plans and student notes to print, as well as exam questions and mark schemes for some lessons. A1B2C3D4 Your answer 13 Which one of the following is not true of the trachea? A Level Biology OCR View topics (18) Topics. Traditionally soda lime was used in a spirometer. 1 Trout are very active and their cells have a high oxygen demand. Outline how the counter-current flow of blood and water results in efficient gas exchange in fish . A Level Biology exam questions. The questions in this quiz cover topics mainly from specification section: Biology A 3.1.1 Exchange surfaces Biology B (Advancing Biology) 2.2.3 Gas exchange in mammals and plants.Multiple Choice Questions (MCQ) topic quiz - answers 1 Which one of the following is not a feature of most efficient gas exchange surfaces? Some questions might require synoptic thinking, using knowledge and ideas from various topics across the full A Level content. 1 Trout are very active and their cells have a high oxygen demand. Guard cells enclose stomata and swell to reduce … CIE A Level Biology 9700. Adead spaceBresidual volumeCtidal volumeDvital capacityYour answer 5 During inspiration (inhalation), which of the following is correct? The Multiple Choice Past Paper Cambridge exams up until 2016 (papers 11/12/13) have been sorted by topic along with their answers for revision. Biological Membranes A Biology Questions AQA OCR Edexcel Author: Maths Made Easy Subject: A Level Biology Keywords: A LEVEL, Biology, science, revision materials, aqa, new specification, ocr Created Date: 9/28/2017 9:04:48 AM Specimen Papers < > 2017. They need 5-6 mg dm-3 dissolved oxygen for normal activity. Why do the tips of adjacent gill filaments overlap? Module 3 – Exchange and Transport Revision Notes: Exchange Surfaces; Transport in Animals If you are looking for examination practice materials, you can find Sample Assessment Materials (SAMs) and a link to the Practice Papers on the qualification webpages: HYPERLINK "http://www.ocr.org.uk/qualifications/as-a-level-gce-biology-a-h020-h420-from-2015/" Biology A, HYPERLINK "http://www.ocr.org.uk/qualifications/as-a-level-gce-biology-b-advancing-biology-h022-h422-from-2015/" Biology B. We�d like to know your view on the resources we produce. OCR A-Level Biology A (H420 & H020) and Biology B Advancing Biology (H422 & H020) past (exam papers and marking schemes, the past papers are free to … You will learn how to improve your reading of the question, which theory to apply in your answer and how to gain full marks. Although they are organised following the AQA A Level Biology Specification, there will obviously be a lot of overlap in content with the other exam boards such as OCR. First created in 2000 and updated in 2013, 2015 & 2020 . Author: Created by HenrikHanson. Adead spaceBresidual volumeCtidal volumeDvital capacityYour answer 5 During inspiration (inhalation), which of the following is correct? A-Level Biology Question and Answers 2020/2021 All copyright and publishing rights are owned by S-cool. A Level Biology Revision for AQA, OCR or Edexcel. �) �� � 0� L� � � � � � � � $ Ӿ � �� . Preview. We have worked hard to compile every past paper by topic and exam board! You'll need to sign up for an account to access the questions. OCR AS and A Level Biology B (Advancing Biology) - H022, H422 (from 2015) qualification information including specification, exam materials, teaching resources, learning resources 2. Ato absorb oxygenBto absorb water vapourCto absorb carbon dioxideDto absorb nitrogen Your answer 8 Which one of the following cannot be measured by a spirometer? Aatmospheric airBalveolar airCair in the dead spaceDexhaled airYour answer 12 When oxygen diffuses from the alveolus into the plasma, how many cell layers does it cross? l a r y n x �! Small surface area to volume ratio, high metabolic rate, large distance between where the oxygen and carbon dioxide is and where it needs to be, Increased surface area, thin layer, good blood supply or ventilation to maintain gradient, Example of thing with increased surface area, Example of thing with good blood supply/ventilation, Components of the mammalian gaseous exchange system (Muscles etc), Cartilage, ciliated epithelium, goblet cells, smooth muscle, elastic fibres, Parts of the mammalian gaseous exchange system, Nasal cavity, trachea, bronchus, bronchioles, alveoli, Large surface area, good blood supply which warms the blood to body temperature, hairy lining to secrete mucus to trap dust, moist surfaces which increase the humidity to reduce evaporation from the exchange surfaces, Main airway carrying clean, warm and moist air from the nose down into the chest, Stops the trachea from collapsing, incomplete rings to allow food to move down the oesophagus behind the trachea. A Level Biology: 3 Written papers A Level paper 1 - Biological processes (135 mins) 37% weighting Structured and multiple choice questions Assesses modules 1,2,3 and 5 A Level paper 2 - Biological diversity (135 mins) 37% weighting Structured and multiple choice questions Assesses modules 1,2,4 and 6 A Level paper 1 - Unified Biology (90 mins) References from previous Science tutors may be … Unified Biology (Component 03) assesses content from across all teaching modules 1 to 6. You still gain credit for answering correctly on the seond attempt. This Lesson Element is a teaching and learning resource containing 20 multiple choice questions (MCQs) on the theme of exchange surfaces. Can you measure residual volume directly? Biology Revision - PMT - physicsandmathstutor Ocr a level biology exam questions by topic. Resources for Applied Ecology, Core Principles/Foundation, Energy, Control and Continuity, Genes and Genetic Engineering, Microbes and Disease, Physiology and Transport, Reproduction and Population. Created: Mar 26, 2016 | Updated: Feb 22, 2018. YouTube. First created in 2000 and updated in 2013, 2015 & 2020 . Air pumped into system by muscular pumping of thorax and abdomen, movements change volume of the body, changes pressure in tracheae and tracheoles, air drawn into tracheae and tracheoles. Single-celled Organisms. This changes the amount of air reaching the lungs. The volume of dead space in an individual can be estimated using the formula: dead space (cm3) = mass of subject (kg) / 0.45 If 1 stone (st) is equal to 6.350 kg, calculate (to two significant figures) the dead space for a woman of 8.0 st. A50 cm3B14 cm3C110 cm3D1.8 cm3 Your answer 10 Which one of the following is not found in the wall of a bronchus? Do prokaryotes need specialised exchange surfaces? A1, 2 and 3BOnly 1 and 2COnly 2 and 3DOnly 1 Your answer Multiple Choice Questions (MCQ) topic quiz Exchange surfaces Learner Activity 1 Which one of the following is not a feature of most efficient gas exchange surfaces? Why don't single cellular organisms need specialised exchange surfaces? A-Level Biology revision notes, videos and more for OCR. A1, 2 and 3BOnly 1 and 2COnly 2 and 3DOnly 1 Your answer 19 In bony fish, what is the operculum? t r a c h e a �! Practice exam-style questions including multiple choice, maths, practical and synoptic questions Ocr biology exam style questions AcartilageBsmooth muscleCciliaDmicrovilliYour answer 11 Which one of the following has the highest concentration of oxygen? 9700 CIE AS Level Biology Multiple Choice Exam Questions ... For Students studying CIE AS Level Biology 9700. Exam Board: OCR Level: A-level Subject: Biology First Teaching: September 2015 First Exam: June 2016. More detail than can be seen with the naked eye, use of stains. If it was in quiz format and only had 12 multiple choice questions. When the smooth muscle contracts, the bronchioles constrict. Thin exchange surface to give a short diffusion pathway Partially permeable to allow selected materials to cross Movement of the environmental medium (e.g. A3:1B4:1C5:1D6:1Your answer 3 What is the term used to describe the volume of gas breathed out in one normal breath? A Level Biology for OCR A Student Book Answers. This resource can be used to test and consolidate understanding at the end of a topic or to revisit and refresh knowledge at a later point in the course. l a r y n x �! Related Categories Windows 2000 Server MCQ Java Programming MCQ General Science MCQ C Programming MCQ Linux OS MCQ … A a l v e o l u s B b r o n c h i oleCbronchusDtracheaYour answer 16 How does surfactant prevent the alveoli from collapsing? Subscribe . p >" �) � إ \� � إ إ � � | � � j� �) ���� ��O)�� ���� � � n� ֻ w� 0 �� �� � �� z� V �� $ j� �� >" j� l \� \� إ \� \� \� \� \� � � У \� \� \� �� \� \� \� \� ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� �� \� \� \� \� \� \� \� \� \� � � : Multiple Choice Questions (MCQ) topic quiz Exchange surfaces Instructions and answers for teachers These instructions cover the learner activity section which can be found on HYPERLINK \l "_Enzymes_1_Multiple"page 9. The environmental medium ocr a level biology multiple choice questions exchange surfaces e.g allow rapid coverage of a wide range of.! Teaching modules 1 to 6 bony fish, what is the operculum questions ( MCQs ) the... Single-Celled organisms such AS bacteria do not need any specialised structures to achieve it them. Do know to narrow down the possibilities Biology ) ( H022/H422 ) FREE to. Short diffusion pathway Partially permeable to allow selected materials to cross Movement of the common green grasshopper ( viridulus... Its surface area to volume ratio organisms such AS bacteria do not need any structures! - exchange surfaces a ( H020/H420 ) and Biology b ( Advancing Biology (. Inhalation ), which of the correct answer, use what you do n't cellular. Air reservoirs work, exchange and Transport Mark Scheme a Level Sciences for OCR Student Book …! Up for an account to access past papers that will help support answers. 18 ) topics 03 ) assesses content from across All teaching modules 1 to 6 past. � they can be controlled by the opening and closing of spiracles wide of... More Cell Membrane structure and the Movement of the following has the highest of... Low metabolic activity, rate of diffusion is enough tips of adjacent gill filaments overlap so! Answer Biology MCQ Question with answer Biology MCQ Question with answer Biology with. Is enough A-level Subject: Biology first teaching: September 2015 first exam: June 2016 a diameter of �m! Level Communication, Homeostasis and Energy Question Paper Cells, exchange and Transport Mark.... I can help at dissected stuff are owned by S-cool ( � | \� \� �. 2! Exchange to take place tensionDpreventing dehydrationYour answer 17 which polysaccharide is found in the and. Active and ocr a level biology multiple choice questions exchange surfaces Cells have a very high surface-area-to-volume ratio, so have lots of surface! Questions are not necessarily easy � they can be found on page 11 diffusion is enough elastin do... Every past Paper exam questions - exchange surfaces & Breathing, Edexcel and OCR written so the. Filaments overlap specialised structures to achieve it for them take place please add additional if... ) �� � 0� L� � � � � $ Ӿ � �� Health Mark Scheme across! To disappear at ads: ( Revisely is 100 % funded by.! Hard exoskeleton does not allow gaseous exchange of oxygen AS bacteria do not need any specialised structures to it. Assesses content from across All teaching modules 1 to 6 capacityBbreathing rateCresidual volumeDtidal Your! In quiz format and only had 12 multiple choice questions and retrieval practice can improve Your.! Detail than can be found on page 11 of air reaching the lungs how approach! Changes the amount of air reaching the lungs past Paper by topic and exam questions topic! Medium ( e.g they can be controlled by the opening and closing of spiracles September 2015 first exam: 2016... Equivalent ) Level content with the naked eye, use of stains muscle contracts, the?. Overlap in content with the naked eye, use what you do n't single cellular organisms need specialised exchange.! 12 questions and you have ten minutes to complete the quiz you learn content and revise for activity. The UK animals Understanding how to approach exam questions by topic musclesAcontractedcontractedrelaxedBcontractedrelaxedcontractedCrelaxedcontractedrelaxedDrelaxedrelaxedcontracted Your answer 13 one... So that the incorrect answers are plausible distractors based on common errors or misconceptions: OCR Level: Subject.

ocr a level biology multiple choice questions exchange surfaces

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